After this long winter, spring's warmth has begun to melt all that pesky snow. In the Northwest, the resulting runoff helps power everyday life. Only this year there's too much power for them to handle. »6/14/11 5:40pm 6/14/11 5:40pm

A new hydropower prototype from the University of Michigan could end up using even slower river and ocean currents to generate energy. VIVACE, which stands for Vortex Induced Vibrations for Aquatic Clean Energy, can generate power from as little as 2 knots, making it more useful than most turbine and water mill…
»11/26/08 4:30am 11/26/08 4:30am